Siphon pump



July 29, lso.

G. v. GAVAZA SIPHON PUMP Original Filed March 2, 1927 `Patented `luly29., 1930 UNITED` STAT ES PATENT `f."l'"`1Cl-" GEORGE v. GAvnzA, or`convenuiruissiiciru'sncnusfAv sIPHoN PUMP "Original applicationmea'narch 2, 1927, serial No. 171,984. Dividedk alla this appngation medoctober, 111,

l v v fiez?. seriainuaznaisv; v 'f The present invention: relates topumps 1 and more particularly torpumps which are `used to draw liquidinto the long legs of siphons.` l

is generally used in pumps of this type, with a combined piston andvalvewhereby: liquid .maybe :drawn into fthe cylinder from the Source ofsupply and held therein in readiness for'use.`

To thefacco'mplishment of this-object, a

feature of 'the' invention contemplatesthe provision, in a pumpadaptedto be connected]` y to the longlegoffa siphon provided with a cylinderhaving an inlet, an outlet, anda: f :valve seat adjacent the outlet, ofa'piston rod, r

and a piston secured thereto movable from ai L'position adjacent theinlet to a' position ad- 2o jacent the outlet tofill the cylinderwithliq-i uid from the source of VVsupply and also mov- 4 able intoengagement with the -valveseat to preventthe lowo-f liquid throughtheoutlet.

Broadly considered the piston may be con-1 structed of any suitablematerial. The use `of aV leather piston is disadvantageous, however,because itis not 'flexible enough to ac- `commodate .itself torestrictionsin the hol-` low cylinderv due to the dents Vcausedjby the3o accidental dropping of the cylinderand beto accommodate itself torestrictions in the cylinder caused by dentsfand which will not" ishrink in `size through disuse.

To the accomplishment of this object, an-

`4:0V othersfeature of the present invention con-" .45 rubber pistonsecured thereto and movable v within the hollow cylinder from `aposition `the sourceof suppl `lwashing machines,

lon automobiles, etc.

:sponge-rubber piston maybe used merely to ton as afvalve in accordancewiththeprinci- 5 The principal object of the present inven-g` l tion isto provide the hollow cylinder, which pal object ofthe presentinvention.

Qtherfeatures ofthe invention vrelate Vto certain devices, combinationsand arrangetion will be'readily understood from'an inspection of theaccompanying drawings showing the best form 'of the'invention` atpresent known to thelinvent'or, in which,

'Figurel is an elevation of the pump adaptedtobe connectedito the longleg ofa Siphon;

Fig. 2 isa sectional elevation showing how i .the combined piston and.valve is unseated from the lvalve ,seat through. engagement With themouth of a bottleto bejlled, `f f Fig;V 3 'fis a" detail in`sectionalfelevation showing the piston engaged*with* the `valve` l@,ynsV

Plume j "This application is a division ofmy appli-.d cation filed MarchV1927,1Serial No.` 171,984, p Patent No. 1,666,850.,` causeit shrinks in'size as it dries through dis- 1 seatgand Y Y. t ,e Figl isanelevati'onshowingthe connected toj'the long leg of acsiphon.

` d Referring "to the drawings, the pump 5`(Fig. V4) is adapted j Y tobeconnected to the long legl6 ofa siphon, Accordingly, another object ofthe present invention is to provide the hollowl'jcylinder v:us with apiston which will be flexible enoughv theshort leg T o flwhich'isinserted into a source of liquid Vsupply such as the barrel8.

ments of parts `hereinafter described and A' then'set `forth broadly indetail in theap- V pend-ed claims which f possess advantages aquariums,"fish-store tanks, washA boilers,

batteries, `gasoline tanks The pump 5 comprises a cylindrical barrelllgin order" to;` filter`- the` liquid 4,flowinginto whats/lindenadjacent the inlet toa positionadjacentthe """-*TheotheI'endofthecylinder 9isenlarged outlet towfillfthe. cylinder with liquid froml Aby`vmeans l of la. flange-,1 2 and this" flange j is '9 whichisscrewithreadedon' oneend to rel ,Y ceive an inleticaplO which receivesthe rub- -ber" tube `comprising theV rlong v ,leg "c6 of the siphonQ'TheinletllO carries a4 filterscreen screw-threaded` :to receive thes,th'reads` on an f "-olitletgcapla The 'outlet clap 13 is shapedcylindrical block of sponge-rubber 19 inter- V posed between two metalwashers 2 0 and 21, smaller in diameter than vthe -s'pongefrubber- Theblock and washers are held in place on the shoulder 18 by a headed screw22'which fitsinto `the upper end of the hollow rod 17 The screw 22closes the upper end of the ho1- low rod 17 so, in order to permitliquid to Tiiow into thehollow rodf 17,. it .is provided with fouropenings 23 (Figsg 2;and 3).

YThe piston19 is movable from` the dotted` line lposition OfFig. 2,adjacent -the inlet kto the-cylinder, to a position where the Vpiston Iengages the valve seat 15in the chamber 14 I `During thismovement the`piston creates. a: condition of yunbalanced pressure between theinterior kof the cylinder and the surface oftheliquid inthe source ofsupply,

thus causing liquid tofflow through the s1- phon and fill the cylinder.The liquid is prevented from iowingrout of the cylinder 9 by the piston19 which. acts as-a valve engaged with the valve seat 15.A

In order to unseat the piston valve seat 15 and thus permitli'quid toflow from the chamber 14 through the apertures 23 into the hollow rod 17from which they vbeing elast1c,*will'yield enough to` permit 1t liquidvmay be discharged into a bottle shown in construction lines in Fig. 2,the tube 16 carriesfarslidingsleeve 24 providedwith a,seriesiof-integral inturned prongs 25 which .extend through elongatedopenings 26.inA the tube 16 and engage the exterior ofthe holf Y low rod17. The hollow rod 17V isprovided with an Vannular groove 27 into .whichthev prongs 25 .springy (Fig. 3) when the piston 19 engages-the valveseat 15. The sleeve 24 is provided with a bell-shaped portionY 28Aconstructed to engage the mouth of the bottle i to be filled and holdthe :pump Vupright thereon. The bell-shaped portion 28' is provided withaseries ofair holes 29 and a series of nodes 30 `to insure the free exitofair'from thefbottle duringtheifilling operation.'V

When the piston 19 has been Ydrawn from v the dotted line` positionrof 2into the position of Fig. 3, the cylinder is illed with liquidfromthesource. of supply, Ybut thisliquidV is prevented fromflowingthrough the apertures 23 into` the .hollow piston rod 17 with the-valveseat. .When the sleeve 24'en'- gagesV the mouthjo'f the bottle, .intowhich the hollowV rod 17 extends, theweight of the parts'lcauses thesleeve 24 .tomoveY-relatively Vto the tubek 16from the })osition of.Fig.f3

to gthev position oflFi'giiv 2,.y thereby unseating 19Y'from the ofliquid until'thepump is again positioned on anotherbottle whenthe valveis reopened.

In order to prevent foaming in the bottle during the filling operation,the open end of the hollow rodv 17 lis provided 1with. a discharge tip31 having two slots 32 which discharge the liquid laterally of thehollow rod.

.'VVhen it is desired tol produce a continuous How of liquid from thecylinder 9, the piston 19 is elevated slightly'V from its seat on thevalve seat 15 and the sleeve 24 is positioned so that the prongsthereon,l instead ofengaging the annular groove 27, grip the exterior ofthe hollow rod 17 belowithe Lannular groove 27. .This action causes the,material of the sleeve 24 forming the bases of the prongs .25

to exert a frictional grip 'on the tube 16, thus holding the tube andsleeve ,fromfrelative movement. l/Vhen -usin'g thepump in the manner'describedto produce a continuous ilow,the tip 31 maybe removed tovobtain an unrestricted flow'from the open'endof the hollow rod17.

. It will. be Yreadily Yunderstood by those skilled in: the artt-hateven though the cylinder isdented by accidents the s'pongerubber,

' class ofdevices .and with ythe general objects ofthe present inventionin view, that changes ,may be made inthe details ofstructu're, the

1 described' and illustrated embodimentl therelvalve .'seat. adjacenttheV outlet, Iof ,a f pistonf4 .rodi and a piston secured thereto,movable `VAfrom a position adj acent thevinlet to ay posi- Y bythepiston which acts as a valvejengaged tion adjacent vthe outletin'toengagement with Ythevalveseat to ll the cylinder with Vliquidkfrom-the'source of supplyandy prevent-thef flow of zliquid through the:outlet.

. 2.In2aqpump adapted ,to'xbe connected to the long'leg 'of afzsiphon,fthe. combination with a cylinder subj ectyt'ofmalformation havf. :ing 1811i inlet, 1and;ranwoutlet-,aotapistonu rod,

` and a piston secured thereto, movable from Y and a sponge-rubberpiston secured thereto, movable from a position adjacent the inlet to aositionadjacent the outlet to fill the cylindjer with liquid from thesource lof supply and automatically accommodate itselfto the malformedcylinder during said movement.

3. In a pump adapted to be connected to the long leg of a Siphon, thecombination with a cylinder having an inlet, an outlet, and a` valveseat adjacent the outlet, of a piston rod, and a sponge-rubber pistonsecured thereto and movable from a position adjacent the inlet to aposition adjacent the outlet into l engagement with the valve seat tofill the cyl inder With liquid from the source of supply and prevent theflow of liquid through the outlet.

4. In a pump adapted to be connected to the long leg of a Siphon, thecombination with a `cylinder having an inlet, an outlet, and

an enlarged chamber adjacent the outlet, a`

valve seat in the chamber, of a piston rod,

a position adjacent the inlet into engagement with the valve seat tofill the cylinder with a liquid from the source of supply and preventthe flow of liquid through t e outlet.

5. Ina pump adapted to be connected to the long legv of a Siphon, thecombination with a cylinder having an inlet, an outlet,

and a valve seat interposed Vbetween theV inlet andthe outlet, and a,piston rod,

of a piston on the rod, movable in con-V tact with the cylinder in onedirection to fill the cylinderfrom the source of supply, r

` fand also movable at thelimit of movement in said direction. intoengagement with the valve seat `to prevent the flow ofliquid Y throughthe outlet.

6. In a pump adapted to be connected to the long leg of a Siphon, thecombination with a cylinder having an inlet, an outlet, and a valve seatinterposed between'the inlet'and the outlet, and a piston rod, of acylindrical piston having its peripheral surface movable.

in contact with the cylinder to iill the cyl inder With liquid from thesource of supply and having one of its yend faces movable intoengagement with the valve seat Vto prevent the flow of liquid throughthe outlet.

In testimony whereof I have signedmy I name to this specification.

fno

Y GEoRGEvGAvAZA.

